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BBC Radio 4 Today on Twitter: "The Mysterious Colin, GCHQ's chief puzzler, shared the agency's official Christmas puzzle with us on The Today Programme this morning. It's rather tricky! can you solve
Sevenoaks School - Can you solve Ryan's puzzle? Answer to follow! Ryan Glass, Teacher of Mathematics, is a contributor to BBC Radio 4's Today Programme Puzzle Book 2: The puzzle book of
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Today Programme Puzzle Book 2: The puzzle book of 2019: Over 250 brainteasers from the land, sea and ice: Amazon.co.uk: BBC: 9781788400657: Books
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Locked In Edinburgh - So today we are increasing the puzzle difficulty with this little beauty. Make sure you use everything in the photo... "A little puzzle every day, keeps the grey
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